According to a study in the March 24/31 problem of JAMA.

The quantity of physical activity needed to prevent long-term weight gain is certainly unclear. Related StoriesThree out of four consumers not really covered for evidence-based obesity treatment servicesSt. Michael's Hospital research finds that cholesterol-reducing diet plan also lowers bloodstream pressurePoverty and parenting style predict childhood obesityI-Min Lee, M.B.B.S., Sc.D., of Brigham and Women’s Hospital and Harvard Medical College, Boston, and colleagues examined weight changes connected with different exercise levels in a report that included 34,079 healthful U.S.The frequency and intensity of adverse events were similar in the two study groups and across age groups . No events were regarded as related to the study drug definitely. Two were regarded as probably related to the study drug . Ocular discomfort was noted in 7 patients on day 2; 4 of the 7 individuals also had ocular discomfort at baseline. All adverse events in patients 6 months to 4 years were regarded as unrelated to the study drug, with no age-related trends. Pruritus was a baseline locating in 533 of 781 sufferers in the extended intention-to-treat populace.